This is a KRISS USA, Inc Pistol known as the VECTOR SDP chambered in 45 ACP, model KV45-PBL20.
The KRISS Super V Recoil Mitigation System uses an innovative nonlinear operating system that revectors energy down and away from the shooter's shoulder to dramatically reduce felt recoil and muzzle climb. This system allows the shooter to recover faster" for quicker and more accurate sequential shots. The KRISS Vector is designed to use the reliable and ubiquitous standard Glock(TM) magazines.
Features:
Glockâ„¢ Magazine Compatible
Extremely Low Bore Axis
Super V Recoil Mitigation System
Threaded Barrel